Merge Fields Invalid

Hi!

I cannot get the integration with Contact7 and MailChimp working…

Here are the fields in MailChimp:
https://dl.dropboxusercontent.com/content_link/9xePHx2k46VD6C11IVLhtuGkDkF5HRahPMI2JzM15XbBe9BJprA1286Dt1Day4zf/file

Here are the fields in my contact7 Form:
https://dl.dropboxusercontent.com/content_link/y255bhD7KWWga2t0koOIOlw6kXPOmrFnZPzA2vX05GvljGXDTRJkl1bjdY5zsb5C/file

Here is the error I see in MailChimp API:
https://dl.dropboxusercontent.com/content_link/k3BNtkVZBg4qUhH9PWOYM6ndBvjWdZEqJEF6FA9ZUSwhM3u4hEWDogr0aOOXwMBw/file

Any help would be greatly appreciated!